Square D HGA36100U44X Molded Case Circuit Breaker
- 100A
- 3 Pole
- I-Line
Square D
HGA36100U44X
Molded Case Circuit Breaker
Brand
Square D
SKU
HGA36100U44X
Quantity
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Square D HGA36100U44X - 100A 3 Pole Molded Case Circuit Breaker
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Description
Part of the PowerPacT H-Frame series, the Square D HGA36100U44X is a 3-pole, 100A molded case circuit breaker designed for commercial and industrial power distribution. It provides robust 65kAIC at 240V and 35kAIC at 480V interrupting capacities. This breaker installs into Square D I-Line panelboards and switchboards using a plug-on I-Line connection. Equipped with a Micrologic 6.2 A ammeter trip unit, it features highly configurable LSIG (Long, Short, Instantaneous, Ground-Fault) settings.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGA36100U44X |
| Series | HGA |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 40-100A |
|---|
| Frame Type | HGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 6.2A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Communication Module |
|---|---|
| Accessories | Micrologic 6.2 A Ammeter Trip Unit (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, True RMS Sensing |
Product FAQs
6 answersWhat panels accept the HGA36100U44X circuit breaker?
This PowerPacT H-frame breaker mounts directly into Square D I-Line panelboards and switchboards. It uses an I-Line style plug-in connection on the line side and standard lugs on the load side.
What protection functions does the Micrologic 6.2 A trip unit provide?
The U44X suffix indicates a Micrologic 6.2 A electronic trip unit. It delivers adjustable Long-Time, Short-Time, Instantaneous, and Ground-Fault (LSIG) protection, plus integrated ammeter functionality for current monitoring.
What wire gauge is required for the load side terminals on the HGA36100U44X?
The factory-installed load lugs accommodate either aluminum or copper conductors ranging from 14 AWG to 3/0 AWG.
What is the maximum interrupting rating for this 100A I-Line breaker?
The G-interrupting tier provides a maximum rating of 65kA at 240VAC. It is also rated for 35kA at 480VAC and 18kA at 600VAC.
Does this breaker require a separate ground-fault relay?
No, the integrated Micrologic 6.2 A trip unit includes built-in ground-fault protection, eliminating the need for external ground-fault relays in most standard applications.
Is the HGA36100U44X rated for 80 percent or 100 percent continuous current?
This standard PowerPacT H-frame breaker is rated for 80 percent continuous current.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
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Rating
14 reviews
- RERic E.Verified BuyerReviewingSquare D HGA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/18/26Great item
Breaker was in great shape, and packaged with care
- CFCameron F.Verified BuyerReviewingSquare D HGA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/29/25HGA36050
Thank you, guys, for being SUPER quick with all your deliveries.
- CWCallie W.ReviewingSquare D HGA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/28/22Great company
Have made multiple orders through them and they always ship out fast and the correct items. Will continue to do business with them.
- JMJustin M.ReviewingSquare D HGA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/8/22Great service!
Prompt shipping.
- SMSteven M.ReviewingSquare D HGA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/11/22Great service
I need the 2 breakers NDA, but they had one in stock, and had to get the other from there supplier. Some how I received both breaker the next day and got the job done. GREAT SERVICE!!